com.inductiveautomation.ignition.gateway.tags.evaluation.subscriptions

Class PropertySetNodeManager

java.lang.Object

com.inductiveautomation.ignition.gateway.tags.evaluation.subscriptions.AbstractNodePropertyManager

com.inductiveautomation.ignition.gateway.tags.evaluation.subscriptions.PropertySetNodeManager

public class PropertySetNodeManager
extends AbstractNodePropertyManager

This node manager publishes properties from a PropertyValueSource. It is useful when we have a property set that we want to publish fully, and we don't know exactly when the individual values have changed- this class will track the last values published, and will evaluate only the properties that actually have subscriptions.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	PropertySetNodeManager.ChangeTrackingNodeSubscription

Nested classes/interfaces inherited from class com.inductiveautomation.ignition.gateway.tags.evaluation.subscriptions.AbstractNodePropertyManager

AbstractNodePropertyManager.PropertyNode

Constructor Summary

Constructors

Constructor and Description
PropertySetNodeManager(PropertyValueSource source)
PropertySetNodeManager(PropertyValueSource source, Property<?> defaultProperty)
PropertySetNodeManager(PropertyValueSource source, Property<?> defaultProperty, java.util.Collection<? extends Property<?>> publishedProperties)

Method Summary

Modifier and Type	Method and Description
protected Property<?>	getDefaultSubscriptionProp()
protected <T> T	getPropertyValue(Property<T> prop)
protected java.util.Collection<? extends Property<?>>	getPublishedProperties()
void	subscribe(Property<?> prop, NodeSubscription sub) Subscribes to the specified property.
void	updateSource(PropertyValueSource source)

Methods inherited from class com.inductiveautomation.ignition.gateway.tags.evaluation.subscriptions.AbstractNodePropertyManager

browse, clearSubscriptions, createDescriptionFor, fireAllSubscriptions, fireSubscription, fireSubscription, fireSubscriptionToTarget, getPropertyNode, getSubscribedSet, getTarget, hasTarget, readProperty, unsubscribe, writeProperty

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PropertySetNodeManager

public PropertySetNodeManager(PropertyValueSource source,
                              Property<?> defaultProperty,
                              java.util.Collection<? extends Property<?>> publishedProperties)

PropertySetNodeManager

public PropertySetNodeManager(PropertyValueSource source,
                              Property<?> defaultProperty)

PropertySetNodeManager

public PropertySetNodeManager(PropertyValueSource source)

Method Detail

getPublishedProperties

protected java.util.Collection<? extends Property<?>> getPublishedProperties()

Specified by:

getPublishedProperties in class AbstractNodePropertyManager

getDefaultSubscriptionProp

protected Property<?> getDefaultSubscriptionProp()

Specified by:

getDefaultSubscriptionProp in class AbstractNodePropertyManager

getPropertyValue

protected <T> T getPropertyValue(Property<T> prop)

Specified by:

getPropertyValue in class AbstractNodePropertyManager

updateSource

public void updateSource(PropertyValueSource source)

subscribe

public void subscribe(Property<?> prop,
                      NodeSubscription sub)

Description copied from class: AbstractNodePropertyManager

Subscribes to the specified property. If prop == null, it will be the default property of the node. Important point: we track "default null" separately from an actual property value for default. This is because the subscription system doesn't know what our default is. This also means that if the default prop is "Value", subscribing to "Tag.Value" is heavier than just "Tag".

Overrides:

subscribe in class AbstractNodePropertyManager